Commercial Steel Buildings:
For commercial steel buildings the structure designed are always spatial. The spatial structure is installed on ground like triangle or quadrilateral shape, with the upper and lower chord of the planar truss and web members made of circular steel tubes or square steel tubes.

Commercial Steel Buildings:
1).Main Steel Frame: Welded or Hot Rolled Steel H Section;
2).Bracing System: Square Hollow Section and Circular Hollow Section;
3).Surface Treatment: Rust-proof Painting with 2-4 Layers;
4).Steel Material: Q235 & Q345;
5).Shipment: by Open-top Containers;
6).Span: The max span is 50m between supporting bases.
7).Endurance: 30 years;
8).Earthquake Resistance: 9 Grade.